Blaster Worm: Critical Security Patch for Windows NT/2000/XP and Windows 2003 Server Worm known as W32.Blaster.Worm (also known as MBlaster, W32/Lovsan.worm, MSBlast, W32.blaster.worm, Win32.posa.worm, Win32.poza.worm) has been identified that is seeking to exploit the vulnerability that was addressed by Microsoft Security Bulletin MS03-026. Blaster is designed to launch a denial of service attack against Microsoft's Windows Update Web site. [rus | eng]